Railway rail



H. B. BENT L092 Patented July 15, 1924.

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LtdLdQZ HENRY B. BENT, or HARRISBURG, PENNSYLVANIA, ASSIGNOR T BETHLEHEM STEEL. coivrrANY, or BETHLEHEM, rENNsYLVANIA, A CORPORATION or PENNSYLVANIA.

RAILWAY RAIL.

Application filed November 16, 1922. Serial'No. 601,370.

To all whom it may concern:

Be it known that I, HENRY B. BENT, a citizen of the United States, and residing at Harrisburg, county of Dauphin, State of Pennsylvania, have invented certain new and useful Improvements in Railway Rails, of which the following is a specification.

The present invention relates to railway rails and particularly to girder rails for use with electric railways.

The object of the invention is to provide a rail having an inserted longitudinally extending portion of manganese or other steel having superior wearing qualities, which insert is particularly adapted to support the flange of a car wheel, at a frog or crossing for instance, so that the tread of the wheel is lifted from the rail head as the wheel passes over a gap in the rail head. The usual shock caused by impact of the wheel tread on the edge of such gap in the rail head at a crossing is thereby avoided. lVhile particularly adapted for use at crossings or frogs, the special rail has other uses, as will be apparent to one skilled in the art. The invention may have various embodiments and in the accompanying drawings four such embodiments are illustrated.

In the drawings:

Fig. 1 is a cross section of a rail showing a simple flat insert positioned to resist wear of the bottom of the groove of the rail;

Fig. 2 is a similar view of a rail having an insert positioned to resist wear of the bottom of the groove and the inside of the guard; Fig. 3 is a view similar to Figure 2 but showing an insert of a different type adapted to resist wear of the bottom of the groove and inner wall of the guard; and

Fig. 4 shows in section a rail having an insert adapted to resist wear not only of the bottom of the groove and the inner wall of the uard but also of the inner wall of the tread portion.

The body of the rail as it comes from the rolling mill is of relatively soft steel and easily machined. The groove of the rail is undercut, perferably in a milling operation, as shown in the drawings, longitudinally of the rail and generally from end to end. The insert is of hard metal, preferably of manganese steel, and is shaped by rolling, forging, casting, or pressing and is subsequently ground or machined to bring it to the desired dimensions. Then finished the insert is preferably slightly smaller than the groove cut to receive it. When the groove and insert are completed the latter is forced into the groove from the end of the rail and, due to the fact that the grooves are undercut, and the inserts correspondingly flanged, they are securely held in position without the aid of bolts or screws. In case of any slight clearance between the insert and the walls of the groove said clearance being gradually eliminated by the flowing of the insert due to the great pressures incident to the heavy traflic to which it is subjected.

The method of securing the inserts in position may be carried out easily and economically and the resultant rail is of superior serviceability. The machining operations to be performed are simple and once the insert has been positioned it practically constitutes apart of the rail, requiring no bolts or fastening screws.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

1. A railway rail having a head, guard, and intermediate groove, and a hard steel insert in the bottom of said groove, said rail and insert having interengaging p0rtions whereby the insert is secured in position without the use of securing devices.

2. A railway rail having a head, guard, and intermediate groove, and a hard steel insert in the bottom of said groove, said groove being undercut and said insert being L formed to fit closely into the groove and undercut, whereby the insert is secured in position.

3. A railway rail having a head, guard,

and intermediate groove, and a hard steel insert in the bottom of said groove, said groove having opposed undercuts extending longitudnally thereof and said insert havingoppositely extending portions fitting into said undercuts, whereby the insert is securedin position.

4. A railway rail having a head, guard and intermediate groove, and a steel insert within said groove one wall of said insert being horizontal and the other extending in a generally vertical direction, said walls constituting protectivewearing surfaces for the bottom of the groove and inner wall of the guard respectively, and said rail and insert having interengaging portions whereby the insert is secured in position without the use of securing devices.

5. A railway rail having a head, guard, and intermediate groove, and a substantially ta -shaped insert Withinthe groove the Walls of which constitute proteotivewearing surfaces for the bottom of the groove and irrside walls of the head. and guard,v and said rail and insert having interengaging portions whereby the insert is secured in 130- 1 sition Without the use of securing devices. In testimony whereof I hereunto affix my signature.

HENRY B. BENT. 

